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BQ25619RTWR
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Texas Instruments Battery Management, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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BQ25619RTWR
Texas Instruments · Battery Management · WQFN-24-EP(4x4)
BQ25619RTWR from Texas Instruments, in a WQFN-24-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VAC | input | Input voltage sensing pin that must be tied to VBUS. |
| 2 | PSEL | input | Power source selection input; HIGH for 500-mA limit, LOW for 2.4-A limit. |
| 3 | PMID_GOOD | output | Open-drain active-high PMID good indicator; HIGH when PMID < 5.2V and Q1 current below 110% IINDPM. |
| 4 | STAT | output | Open-drain charging status indicator; LOW during charge, HIGH when complete, 1Hz blink for fault. |
| 5 | SCL | input | I2C clock input connected to logic rail through 10-kΩ pull-up resistor. |
| 6 | SDA | bidirectional | I2C data line connected to logic rail through 10-kΩ pull-up resistor. |
| 7 | /INT | output | Open-drain interrupt output generating 256-μs active-low pulse for status notification. |
| 8 | NC | unconnected | Not connected pin. |
| 9 | /CE | input | Charge enable input; LOW enables battery charging when CHG_CONFIG bit is 1. |
| 10 | BATSNS | input | Battery voltage sensing input connected as close as possible to battery positive terminal. |
| 11 | TS | input | Battery temperature input with NTC thermistor; resistor divider from REGN to TS to GND. |
| 12 | /QON | input | BATFET enable/reset control input with 200-kΩ pull-up to VBAT and 6.5V internal clamp. |
| 13 | BAT | power_in | Positive battery terminal connection point; 10-μF ceramic capacitor required. |
| 14 | BAT | power_in | Positive battery terminal connection point; internal current sensing resistor between SYS and BAT. |
| 15 | SYS | power_out | Converter output connection point; minimum 10-μF ceramic capacitor to ground required. |
| 16 | SYS | power_out | Converter output connection point; minimum 10-μF ceramic capacitor to ground required. |
| 17 | PGND | power_in | Power ground connection for device operation. |
| 18 | PGND | power_in | Power ground connection for device operation. |
| 19 | SW | passive | Switching node connected to output inductor; 0.047-μF bootstrap capacitor from SW to BTST. |
| 20 | SW | passive | Switching node connected to output inductor; 0.047-μF bootstrap capacitor from SW to BTST. |
| 21 | BTST | passive | Bootstrap supply for PWM high-side gate drive; 0.047-μF capacitor from SW to BTST required. |
| 22 | REGN | power_out | Low-side driver positive supply output at 4.7V typical; 4.7-μF ceramic capacitor to ground required. |
| 23 | PMID | power_out | Boost mode output providing 4.6V to 5.15V regulated voltage; 1-2μF plus 1-nF capacitor recommended. |
| 24 | VBUS | power_in | Input power supply from 4V to 13.5V; 1-μF ceramic capacitor to ground required. |
| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-24-EP(4x4) |
| Category | Power Management (PMIC) |
| Pins | 25 |
CAD (KiCad official)
- Symbol:
BQ25619RTWR - Footprint:
Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm - 3D model: WQFN-24-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
bq25619rtwr-etched.step/bq25619rtwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bq25619rtwr.step/bq25619rtwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (68 pp, sha256
d58774ff9dc19ace, retrieved 2026-09-24, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# BQ25619RTWR
**Texas Instruments** · Battery Management · WQFN-24-EP(4x4)
BQ25619RTWR from Texas Instruments, in a WQFN-24-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VAC | input | Input voltage sensing pin that must be tied to VBUS. |
| 2 | PSEL | input | Power source selection input; HIGH for 500-mA limit, LOW for 2.4-A limit. |
| 3 | PMID_GOOD | output | Open-drain active-high PMID good indicator; HIGH when PMID < 5.2V and Q1 current below 110% IINDPM. |
| 4 | STAT | output | Open-drain charging status indicator; LOW during charge, HIGH when complete, 1Hz blink for fault. |
| 5 | SCL | input | I2C clock input connected to logic rail through 10-kΩ pull-up resistor. |
| 6 | SDA | bidirectional | I2C data line connected to logic rail through 10-kΩ pull-up resistor. |
| 7 | /INT | output | Open-drain interrupt output generating 256-μs active-low pulse for status notification. |
| 8 | NC | unconnected | Not connected pin. |
| 9 | /CE | input | Charge enable input; LOW enables battery charging when CHG_CONFIG bit is 1. |
| 10 | BATSNS | input | Battery voltage sensing input connected as close as possible to battery positive terminal. |
| 11 | TS | input | Battery temperature input with NTC thermistor; resistor divider from REGN to TS to GND. |
| 12 | /QON | input | BATFET enable/reset control input with 200-kΩ pull-up to VBAT and 6.5V internal clamp. |
| 13 | BAT | power_in | Positive battery terminal connection point; 10-μF ceramic capacitor required. |
| 14 | BAT | power_in | Positive battery terminal connection point; internal current sensing resistor between SYS and BAT. |
| 15 | SYS | power_out | Converter output connection point; minimum 10-μF ceramic capacitor to ground required. |
| 16 | SYS | power_out | Converter output connection point; minimum 10-μF ceramic capacitor to ground required. |
| 17 | PGND | power_in | Power ground connection for device operation. |
| 18 | PGND | power_in | Power ground connection for device operation. |
| 19 | SW | passive | Switching node connected to output inductor; 0.047-μF bootstrap capacitor from SW to BTST. |
| 20 | SW | passive | Switching node connected to output inductor; 0.047-μF bootstrap capacitor from SW to BTST. |
| 21 | BTST | passive | Bootstrap supply for PWM high-side gate drive; 0.047-μF capacitor from SW to BTST required. |
| 22 | REGN | power_out | Low-side driver positive supply output at 4.7V typical; 4.7-μF ceramic capacitor to ground required. |
| 23 | PMID | power_out | Boost mode output providing 4.6V to 5.15V regulated voltage; 1-2μF plus 1-nF capacitor recommended. |
| 24 | VBUS | power_in | Input power supply from 4V to 13.5V; 1-μF ceramic capacitor to ground required. |
| 25 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-24-EP(4x4) |
| Category | Power Management (PMIC) |
| Pins | 25 |
## CAD (KiCad official)
- Symbol: `BQ25619RTWR`
- Footprint: `Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm`
- 3D model: WQFN-24-EP(4x4) (KiCad packages3D, STEP)
- 3D model files: `bq25619rtwr-etched.step` / `bq25619rtwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bq25619rtwr.step` / `bq25619rtwr.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/bq25619) (68 pp, sha256 `d58774ff9dc19ace`, retrieved 2026-09-24, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-4-6` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/bq25619rtwr-datasheet.pdf)